Guy's Behavior

What does it mean when my guy classmate puts both his hands on top of my head hold still as I sat infront while he talked to someone else?

And he gets really close only sometimes and drinks from my water bottle knowing well enough that I always put my mouth on it. And when I said the same to him he said he knows it well and that's why drink from it. And the one above with putting both his hands on my head while he talked to someone infront. And I instinctively knew it was him when he put his hands and I just held both his hands with my own I didn't know what to do. And he removed his hands and then pat my head while going away also he did the same to other girl as well

What does it mean when my guy classmate puts both his hands on top of my head hold still as I sat infront while he talked to someone else?
Post Opinion